Real estate's "gross rent multiplier" is Wall Street's "sales to revenue",  "cap rate" is roughly "P/E ratio".When evaluating markets and investments I tend to start with GRM (or lazily the 1% rule), then attempt to return a cap rate based on assumptions about costs, then I work my way to multiple years of projections (assumptions about inflation, amortization, tax benefits, etc), and if I am partnering with one of my smart friends I have to pull up an IRR (internal rate of return).I also look at regional employment levels, median income to rent ratio in the zip code etc. 

When analyzing a market and breaking it down into property Class submarkets, do you find it helpful to complete this division at the city-wide market level, or do you find it also beneficial to additionally break it down by suburb, and even neighborhood?

Example: owner bought $1 million SFH in San Francisco as primary, built 400 sq fit ADU, lives in ADU is making gross rental income STR  renting out two levels of main house, grosses $13,000 month.

It seems counter intuitive to call for that level of development, and then turn around and throw landlords under the bus during the Covid crisis.

I think I'm just not understanding what sort of realtor would be willing to help do something like this because I assume most realtors are used to finding you a move-in ready primary home and that's really what they know, and that the price needs to be a certain level to get a worthwhile commission.

It seems like there was a lot of hype at the government level but owner/occupied demand hasn't been what they thought it would be.

The software doesn't provide that level of granular detail that can mean the difference between 2k and 3k a month. 

So you take this to another comprehension level and I think that will be a tough sell.

The level of professionalism in the commercial world is a big standout to me as well.

I maintain even break even on valuation (which is rare in SF Zoned areas), the ADU has big disadvantages versus new property acquisition including financing, level of effort, rent control, prop tax being based on cost rather than value added, length of time including length of time from first expenditures to first income, reduction of something from existing unit (in your case existing home lost its garage).Did you see starting next year Mf can add an ADU per unit up to 8 units without any affordable housing concessions?